Understanding the Diagnostic Odds Ratio
The Diagnostic Odds Ratio (DOR) measures the effectiveness of a diagnostic test. It is calculated directly from sensitivity and specificity values. A higher DOR indicates better test performance. Medical professionals utilize this metric to synthesize evidence across multiple studies in systematic reviews and meta-analyses.
Formula Used
The core calculation relies on finding the Positive Likelihood Ratio and Negative Likelihood Ratio. The mathematical representation is expressed as:
$$DOR = \frac{\text{Sensitivity} \times \text{Specificity}}{(1 - \text{Sensitivity}) \times (1 - \text{Specificity})}$$
How to Use This Calculator
Input your target sensitivity and specificity percentages into the primary fields. Adjust optional parameters like disease prevalence or sample size if required. Choose your desired confidence level for statistical bounds. Finally, press the submit button to view instant metrics displayed directly above the configuration form.